Phonograph



Dec. 29, 1942. E. L. TRIMAN y 2,306,654

PHONOGRAPH Filed May 28, 1941 5 sheets-sheet 1 Dec. 29, 1942. E. l.. TRIMAN PHONOGRAPH 5 Sheets-Sheet 2 Filed May 28, 1941 E. L. TRIMAN Dec. 29, 1942.

PHONOGRAPH 5 sheets-Sheet 5 Filed May 28, 19,41

E. L. TRIMAN Dec. 29, 1942.

PHONOGRAPH Filed May 28, 1941 5 Sheets-Sheet 4 E. l.. TRIMAN 2,306,654

.PHONOGRAPH Filed May 28, 1941 5 Sheets-Sheet 5 Dea-29, 1942.

Patented nec. 29, 1942 UNITED STATE 'PHONOGRAPH Eugene Il... Trman, Chicago, Ill.,vassgnor to Rock- Ola Manufacturing Corporation, Chicago,r Ill., a corporation of Delaware Application May 28, 1941, Serial No. 395,540 s 17 Claims.

My invention relates to phonographs and more particularly to a coin-operated phonograph system for the electrical reproduction of phonograph l records. l I l Heretofore it has been customary to `provide phonograph systems for the electrical reproduction of phonograph records comprising a central v station and a plurality of subscribers station each connected thereto by a telephone line whereby, at each subscriber station a` coin-operated device enabled the subscriber to lobtain reproduction of y ator at the central station. Thus it was possible .d

for the central stationl operator to play phonograph records in addition to those records requested and paid for by the subscriber.` It has been found desirable to provide a phonograph system for the electrical reproduction of phonom graph records wherein the reproduction of pho- `nograph records is controlled by a coin-operated -means located at the subscriber-station. Such control can be obtained by having the coin-operated means exclusively control the operation of at least one of the essential elements 'necessary for the operation vof the system and forthe electrical reproduction of phonograph records.

It is therefore an object of my invention `to provide a'phonograph system for electrically reproducing wherein atleast one of the elements of the apparatus necessary for the reproduction of phonograph records will be controlled by the coin actuated means located, at the subscriber station.

It is therefore another object of my invention to provide a new and improved phonograph system for the coin-operated electrical reproduction of phonograph records.

It is a further object of my invention to provide an improved phonograph system for the electrical reproduction of phonograph records wherein the operation of at least yone of the essential elements of the system located at the subscriber station is controlled by a coin-operated device located at 'the subscriber station.

stm another object of y invention is to provide a new and improved system for electrically reproducing phonograph records wherein the coin-controlled reproducingapparatus at the central station may be connected selectively to reproducing a phonograph record at' another subscriberstation. e l l Other and further objects of my inventionwill become apparent upon reference to the' following ydescription taken ini connection with the accompanying drawings wherein:v

Fig. 1 is a diagrammatic 'representation of one arrangement offthe elements andcircuits in a single channel phonographsystem which embodies my invention; f l

Fig. 2 is a diagrammatic representationfof another arrangement embodying my vinvention as applied to a double channel phonograph system;

Fig. 3 is adiagrammatic representation of anl; other feature of vmy invention whichmay be ap- "pliedto the arrangements shown in Figs'. 1 and Fig. 4 is a diagrammatic representation of still another feature of myl invention whichmay be applied to the' arrangements shown in Figs;y land Fig. 5 and Fig. 6 are diagrammatic represental tions of modified single and double channel sys-- tems respectively each embodying my invention; and i of 4still other -features and modifications of`my invention shown as applied t0 a single channel system. l

Referring more particularly to Fig. 1, I have shown therein a .central station having aplurality of units such as'u'nit .A andunit B which are arranged to' serve a plurality of subscribers such as subscriber A and subscriber B. The apparatus for each subscriber which is located at the centralstation is shown to the leftof a 'dotted line, and' comprises a telephone line Il connected between the subscriber station A and the central station which ishconnected to a hybrid circuit, or a. talk-listen switch I2. The hybrid coil 'or talk-listen switch I2 is provided to Permit the central'station operator to communicate with the subscriber by means of headphones l I3, a microphone I4 and an amplier I5. The hybrid coil I2 is further connected to a phonograph amplifier I6, the input of which vis connected to a phonograph pick-,up I1 which cooperates with a phonograph turntable and motor I8. f

The operation of the phonograph pick-up I1 and f the phonograph turntable and motor I8 is controlled by certain apparatus operating in response to coin impulses 'received over the telephone line II, and which are detected by a coin impulse detector I9, the output of which is connected to con- Fg. l'lis vanother diagrammatic representation.

sourceof power 28 to an trol a subscriber play accumulator apparatus 2| shown within a dotted line enclosure. This subscriber play accumulator comprises a rachet wheel 22 biased by a spring 23 so as t o rotate in a clock- `wise direction whenever permitted to do so by operationof a rachet escapement 24, which in turn is actuated by a magnet or relay coil connected to the coin impulse detector I9. The ratchet wheel 22 is provided with a stud 26 which engages a contact switch 21 so as to normally.maintain the contact switch 21 in open circuit condition. Whenever an impulse and is detected by the coin impulse detector I9,^the relay coil 25 is energized thereby attracting the escapement 24 to permit the ratchet wheel 22 to advance in a clockwise direction the distance" of one notch. This movesv is received over the line II the stud 26 sufficiently so' as to permit the contacts of the switch 21 to close.`

-detected by operated means will transmit an impulse or im pulses to the central station in accordance with the total value of the coin or coins received thereby.

Whenever the subscriber at subscriber station A wishes to obtain the reproduction of a desired phonograph record, a coin is inserted in the coinoperated apparatus 46 which transmits an impulse signal over the-,telephone line II which is the coinimpulse detector I 9 at the central"station. This impulse actuates the subscriber play accumulator 2I and notifies the operator by means of the signal light 3I. The operator at the central station by means of the vmicrophone I .4 v, the amplier I5 and the headphone 'I3 communicates with the subscriber at the `..subscriber[station A to determine what phono- The switch 21 is connected to supply energyfrom a suitable source of power 28 to a relay coil 29 and a signal lamp 3|. The relay coi1'29when actuated separates av normally closed pairV of contacts 32 which may be connected in shuntacross g theoutput of the phonograph pick-up I1 or-across theinput of the 'phonograph amplifier IIi.v The graph record is desired. The operator at the central station-thereuponA plays a record or a number o f records, dependent `upon the value of the coins received by the coin-operated apparatus at l the subscriber station and-the'system operates in operation. of the relay coil 29. also closesa pair of normally open contacts 33so as to supply power from a suitable source 34 to the phonograph motor I8. Thefphonograph pick-up I1 is arranged to close momentarily a pair of contacts'35 whenever the phonograph pick-up I1 lnormallyopen switch has completed the playing of a phonograph record. j

The switch 35 serves to supply energy from .the electromagnet 36 which is provided with an armature 31 arranged to engage .theV teeth of the ratchet wheel 22. From this it will be apparent that eachftime a phonograph record is played the accumulator apparatuszZI is retracted one unit. 4If only one coin impulse has been received at the central station the actuation of the warx'natur'e 31 by the magnet 36 will serve to deenergize the phonograph motor I8 and to render ineiective the phonograph pick-up I1 by the opening of the switch contacts 33 and the closing of the switch contacts32.

Each subscriber station such as subscriberA is provided with a microphone 38, a suitable amplier 38 therefor and a hybrid coil 4I which normally is connected lto the telephone line II Vby means of the normally closed contacts 42 and 43. The hybrid coil 4I is also connected to a sound reproducer 4,4, and an ampliiier may be connected between the sound reproducer 44 and the hybrid coil 4 I. The subscriber station is furthermore provided with coin-operated apparatus 45 whichmay comprise a signal source. Upon inserting a coin into the coin chute apparatus 46 a relay coil 41 connected to the apparatus 46 is energized so as to disconnect the telephone line II from the hybrid coil 4I by breaking the 43. The coil 41 thereupon connects the telephone line II to the contacts 48 and 49 which are connected to supply an impulse signal from the apparatus 46. The impulse signals transmitted" by the apparatus described correspond to the value coin chute and an impulse pairs of contacts 42 and.

v Fig. l mayalso. be

v tem such as is shown in' Fig; 2. In Fig'. 2 appara- 4tus isshown -for only one subscriber although it is Y .to be understood that the central station may in- `responding to 'the havefbeen shownI as Y nected v,to .the central i pair off. telephone lines5I and 52.

of telephone lines15I is connected througha'suita microphone 51.

tial to the reproduction o f phonograph records being controlled 'ina particular manner by the subscriber `play accumulator reproduction of phonogra'plirecords by Ahaving the apparatusZI control thelo'peration or theefecof`v phonograph records.A o The variousfeatures shown in connection with applied t'o a two channel sysclude, a plurality. of subscribers Vunits each ,cor-

unit shown 1in Fg.'2.' In the double channel systems a subscribers unitis constation' by meansof two The irst pair able isolating transformer 53` to apair ofswitch arms which arenormally connected to the switch `contacts 54 and 55` which are connectedto the amplifier 56 which ampliesthe energy receivedby :phone-line. `52 is connected through asuitable be designed to accept coins;

tions. It, therefore,V is Vapparent that the coin transformer 6I to anl amplifier i nected to a soundfreproduce'r 63.

62 which ism con- At the 1 centrall station a l telephone line may. v.be connectedA through a suitable trans- VVformer ,64` to a line 65 vwhich is connected to Ia coinimpulse' detector 66 andto the switch 'conof a tam-listen switches. The impulse signalreceived over the telephoneline 5I is detectedby theecoin impulse-detectorf which is connected to a subscriber play accumulator 1I, whichaccumula'tor'4 subscriber play as to control the energization of the' signal lamp A12, and the-magnetf-coill 13 of `a relay having a normally closedp'air of contacts 14 and a normally'openpairfof contacts15. The normally nism ||6 is placed into operation by the subscriber by inserting a coin therein. The coin chute andv accumulator IIB when so actuated energizes a relay which disconnects the telephone line from the contacts ||3 and ||4 and connects the telephone line to the contacts ||8 and ||9 which contacts are connected to a signal impulse source |2I. The relay coin ||1 is v operated in accordance with the value of the coin or coins received by the coin chute and accumulator ||6. The actuation of the coin chute and accumulator 6 also energized another relay |22 which connects a pair of conductors |23 connected to the hybrid coil H2 with the contacts |24 and |25 which are connected to an amplier |26 which in turn is connected to a sound reproducer |21. Thus the sound reproducer |21 is rendered effective by the coin-operated apparatus ||6. The telephone line ||5 at the central station is normally connected to a pair of contacts |28 and |29 which are connected to a hybrid coil,

hybrid circuit or talk-listen switch |3| and an impulse detector and subscriber play indicator |32. The impulses transmitted from the subscriber station are received over the line I |5 and detected by the impulse detector and subscriber play indicator to notify the central station operator that a subscriber has rendered effective the phonograph reproducing apparatus. The subscriber play indicator portion of the apparatus |32 indicates to the operator atthe central station the value of the coins received by the coinoperated apparatus ||6. The central station operator upon being notified by operation of the apparatus |32, communicates with the subscriber by means of a microphone |33 and an amplifier |34 and a headphone |35 with the hybrid coil or switch |3|. The central station is provided with a phonograph motor and turntable |31 and a phonograph pick-up |38 cooperating therewith, the output of which is connected to an amplifier |39 which in turn is connected to the hybrid circuit or talk-listen switch |3|. The phonograph pick-up arm |38 is arranged so as to actuate momentarily a switch |4| at the end of the playing of each phonograph record. This switch |4| which is normally open circuit is arranged to control the supply of power from a suitabl( source of power |42 to a relay coil |43. The relay coil |43 when actuated serves to disconnect the telephone line ||5 from the contacts |28 and |29 and to connect this telephone line to the contacts |44 and |45 which are connected to a signal impulse source |46 thereby to transmit back to the subscriber station an impulse which will be received at the subscriber station by an impulse detector |41 the output of which is connected to the coin accumulator I I6. An impulse received from the central station over the line ||5 and detected by the impulse detector |41 serves to retract the accumulator of the apparatus ||6 one unit each time that a phonograph record has been played. From this it will become apparent that whenever a number of phonograph records have been reproduced which corresponds to the value ofthe coins received by the apparatus H6, this apparatus will then be deenergized thereby deenergizing the magnet coil |22 so that the contacts |24 and |25 are opened thereby rendering ineffective the sound reproducer |21.

lThe arrangement shown in Fig. 6 illustratesl the application of the system shown in Fig. 5 when applied to the two channel system. At the subscriber station a microphone |48 is preferably connected through an amplifier |49 and a pair of contacts |5l and |52 to an insulating transformer |53 the output of which is connected to a telephonev line |54. A coin chuteand accumulator apparatus |55 operates to disconnect the transformer |53 from the contacts |5| and |52 and to connect the transformer to the contacts |58 and |51 which are connected to an impulse signal source |58. This is accomplished by the energization of a relay magnet |58 which controis the connection of the transformer and the pairs of contacts |5|.|52 and |56|51. By this means an impulse or a series, of impulses is transmitted from a subscriber station to a central station in accordance with the value of the coins received by the coin chute and accumulator 'apparatus |55 which also controls the energization of a relay magnet |59 which serves to complete a connection between an isolating transformer |6I, the input of which is connected to a telephone line |62 and an amplifier |63 and a sound reproducer |64. Thus the coin chute and accumulator apparatus |55 operate to render effective a sound reproducer |64.

At the central station the telephone line |54 is connected through a suitable isolating transformer |65 to the contacts |66 and |61 to which aie connected an impulse detector and subscriber play indicator apparatus |68 and the switch blades |69 and |1| of a-talk-listen switch |12. Upon actuating thetalk-listen switch |12 to the left a pair of headphones |13 will be connected to the switch blades |68 and I1|. When the talk-listen switch |12 is thrown to the right the microphone |14 is connected through the amplifier |15 to the phonograph pick-up amplifier |16 which in turn is connected through an isolating transformer |11 to the telephone line |62. A phonograph turntable and motor |18 is energized from a suitable source of power |19. The phonograph pick-up |8| which cooperates with the turntable |18 is connected to the input of a phonograph pick-up amplifier |16. Whenever the phonograph pick-up |8| has completed the playing of a phonograph record, a pair of contacts comprising the switch |82 are closed momentarily thereby completing a circuit from a suitable source of power |88 to the magnet coil |84 of a relay which disconnects the telephone line |54 and the transformer I65'from the contacts |66 and |61 and connects the transformer |65 to the contacts |86 and |86 which are connected to an impulse signal source |81. Thus an impulse is transmitted over the telephone line |54 back to the subscriber station where it is detected by an impulse detector |88 which in turn is connected'to the coin accumulator apparatus |55 so as to retract this apparatus one unit each time that a record is played. The operation of the apparatus shown in Fig. 6 is therefore similar to Fig. 5 and it is believed that no further explanation thereof is necessary.

In accordance with the present invention lwhereby the electrical reproduction of phonograph records is controlled by coin-operated means and it is desired to provide an arrangement whereby a subscriber may dedicate the playing of a phonograph record to another subscriber, another modification may be provided such as is shown in Fig. 7. In the arrangement shown in Fig. 7 two units necessary fortwo subscribers have been shown although it is to be understood that a greater number may be provided for. In the present arrangement the apparatus at the station of subscriber a includes a' microphone A and operate in a similar manner.

|89 connected by meansof an amplifier |9| to a hybrid coil |92 which normally is connected by means ofthe contacts |93 and y.|94 to an isolating transformer |95 which is connected with a telephone line |96. Thehybrid `coil |92 is furthermore connected to an amplifier |91 and a sound reproducer |98. A coin operated mechanism comprising a coin chute and an impulse signal sourcel |99 is arranged to transmit impulses from tne subscriber station to the central station, and this is accomplished by the energization of a magnet coil` 20| Hwhich when actuated disconnects the transformer |95 from the contacts |93 and |94 and connects the transformer to the contacts 202 and 203 which are connected to the source of impulse signal contained within the apparatus .|99.

In the central station the telephone line |95 is connected through an isolating transformer 204 to the conductors 205 which are connected to a coin impulse detector 206 and a hybrid coil, hybrid circuit or talk-listen switch 201. The hybrid coil or talk-listen switch 201 is connected to a pairof headphones 208 and also to a microphone 209 and an ampli-tier therefor 2| I. The coin impulse detector 206 is connected to a subscriber play accumulator 2 |2 and also to a total play accumulator 2|3. The total play accumulator 2|3 controls the energization of a magnet coil 2|4 which in turn controls the operation of a switch 2 5 which is located between a source of power 2|6 and all of the turntable motors. 'I'he apparatus at the centralstation corresponding to that serving subscriber-A includes a phonograph motor and turntable 2|1, the energization of which is controlled by the switch l2|5. A turntable 2 |1 is provided with phonograph pickup 2 8 whichis connected` through a suitable arnplier 2|9 to the hybrid coil 201. The phonograph pick-up 2|8 is arranged to actuate momentarily one or more switches such as switch 22| and switch 222. The switch 22| is connected to the total play accumulator so that upon the completion of playing of a record on the turntable 2|1 a total play accumulator will be retracted one unit. At the same time that the switch 22 is actuated, switch 222 is also actuated which is also connected to a subscriber play accumulator 2|2 so as to retract this accumulator one unit at that time. switch 222 thereis provideda manually operated switch 223 the purpose of which will subsequently become apparent.

The apparatus for the other subscribers such as subscriber B in each instance includes a microphone 224, an amplifier therefor 225, a hybrid coil 225, a pair of normally closed contacts 221 and 228 which connect the hybrid coil to an isolating transformer 229 which in turn is connected to the telephone line 23|. A coin chute and impulse signal apparatus 232 is provided'with a relay coil 233 which serves to disconnect the isolating transformer 229 from the pair of contacts 221 and 228 and to connect the transformer to a pair of contacts 234 and 235 thereby to transmit an impulse from the signal impulse source contained within the signal impulse apparatus 232. Thus the elements at subscriber station B correspond to the elements of rsubscriber station At the telephone central the telephone line' 23| is connected In parallel with the :I

ner 242 to the lhybrid con 23s to which is also connected the headphone 243. And, of course,

it will be apparent that while another 'microphone amplier and headphone have been shown connected tothe hybrid coil 238, this apparatus may be' the same apparatus shown connected to the hybrid coil 201 for subscriber A since suitable jack and plug apparatus may be provided in order not to duplicate this equipment. The coin impulse detector 239 is connected to a subscriber play accumulator 244 which may be retractedby the operation of the manually operable switch 245, and the switch 246 which is operated by the phonograph pick-up 241 at Fig. 7 will be best understood by assuming certhrough an isolating transformer 236 to the conductors 231 which are `connected to the hybrid coin 238 and the coin impulse detector 239, A

4microphone 24| is connected through an amplitain operations on the part of the subscriber. If it is assumed vthat subscriber A, for example, wishes to have ve phonograph records reproduced, one of which is to be dedicated to another subscriber such as B, subscriber A will insert a coin or coins of suicient value in the coin chute and impulse signal apparatus |99 to record upon the subscriber play accumulator 2|2 a total of `five records. Assuming that no other plays have been `accumulated by any other subscriber, there will appear on the total play accumulator 2|3 for the central station a total of five plays. The'record which is to be dedicated to another subscriber such as subscriber B is placed upon a turntable`25| and when this record has been played the phonograph pick-up arm 241 will close momentarily a switch 249 thereby subtracting one unit from the total play accumulator 2|3 leaving four units indicated-to be played. The subscriber play accumulator 2| 2,-

however, stillindicat'es ve plays may be made; but the operator, having placed one of the phonograph records on another turntable, may then actuate the manually operable switch 223 thereby reducing the subscriber play indication to four units. Upon the playing of the other four records requested by subscriber A upon turntable 2|1, the phonograph pick-up 2|8'wil1 retract the subscriber play accumulator 2| 2 four units since thephonograph pick-up switch 222 will be closed each time that a record is played. Simultaneously the swtioh 22|`will have been closed four times thereby reducing the total play accumulator 2| 3 four more units at which time the relay coil `2|4 wil be vdeenergized thereby opening the switch 2|5. and thus interrupting the energy to all 'of the turntable motors such as 2|1'and 25|.

While there has been shown, for example,` in connection with subscriber Al the"phonograph pick-up operated switch 222 and the manually operated switch 223 with which to retract the subscriber play accumulator 2|2 each time that `a phonograph record is played yfor subscriber A,

this may be accomplished by other means such as eliminating the switches and merely requiring the operator at the central station to keep track of the number of records played for each subscriber and tov manually reset each of the subscriber play accumulator units such as 2 I 2. From the above description of the operation it will become apparent that this system provides a coinoperated system for electrically reproducing phonograph records whereby the subscribers control the number of records which are to be played and the subscribers stations control the phonograph reproducing apparatus so that only a number of phonograph records may be played at the central station corresponding to the total value of coins accumulated by all of the subscriber stations. This arrangement, however, permits convenient dedication of a phonograph record by one subscriber to another subscriber.

While the arrangement shown in Fig. 'l has been illustrated as being applied to the system wherein the subscribers stations are connected with the central station by means of single channels. it, of course, will be apparent that a similar system may be employed where the subscribers stations are connected by double channels such as shown in Fig. 2. In applying the system shown in Fig. 'l to the type of apparatus shown in Fig. 2, the subscriber play accumulator would not control the effectiveness of the phonograph pick-up nor control the application of the power to the individual subscriber turntable motor, but the total play accumulator would control the application of power to allof the turntable motors located at a central station utilizing the system shown in Fig. 2.

It is to be understood, however, as will be readily apparent to' those skilled in the art, that while I, for the purpose of illustrating my invention, have shown the application of my invention to certain systems and circuits, that my invention is not to be limited thereby, since it will be apparent that other and further modications may be made in the circuit arrangements and in the instrumentalities employed as may fall within the true spirit and scope of the appended claims.

What we claim is new and desire to secure by Letters Patent of the United States is:

1. A phonograph system comprising a central station, a plurality of subscribers stations each connected thereto by a telephone line, means for reproducing phonograph records, certain elements of said means being located at said central station and other elements of said means being located at each of said subscribers stations, means individual to each subscriber for preventing operation of said reproducing means from the central station and coin-controlled means 1oca ted at each of said subscribers stations for controlling exclusively the effectiveness of one of said elements thereby to control the operation of said reproducing means at said central station.

2. A phonograph system comprising a central station, at least one subscriber station connected thereto by a telephone line, means for electrically reproducing phonograph records including a phonograph turntable, a phonograph pick-up, an amplifier therefor, said turntable, pick-up and ampliiier being located at said central station, an amplier and a sound reproducer located at each subscriber station, individual means for each subscriber for preventing unauthorized operation by the central station of said reproducing means and coin-controlled means located at each subscriber station for controlling exclusively the operation of said last means thereby to control the operation of said reproducing means.

3. A phonograph system comprising a central station, at least one subscriber station connected thereto by a telephone line, means for electrically reproducing phonograph records including a phonograph turntable, a phonograph pick-up, an ampliiier therefor, and a sound reproducer, said turntable and pick-up being located at said central station, said sound reproducer being located at said subscriber station, individual means for each subscriber for preventing unauthorized operation of said reproducing means by said central station and coin-controlled means located at said subscriber station for controlling the reproduction of a. phonograph record by the central station by controlling exclusively said last means which determines the effectiveness of at least one of said elements for reproducing phonograph records.

4. A phonograph system for electrically reproducing phonograph records comprising a central station and a plurality of subscribers stations each connected thereto by a telephone line, individual means located at but inoperative from said central station corresponding to each subscriber station including certain elements for reproducing phonograph records, a sound reproducer, and coin-controlled means located at each subscribers station for controlling the effectiveness of at least one .of said elements at said central station for rendering said first means operable for the playing of a predetermined number'of records.

5. A phonograph system for electrically reproducing phonograph records comprising a central station and a plurality of subscribers stations each connected thereto by a telephone line, each subscriber station being provided with a sound reproducer and coin-controlled means for transmitting impulses to said central station in accordance with the value of coins received thereby, said central station being provided with means for each subscriber station comprising a phonograph turntable and motor, a phonograph pickup, an ampliiier therefor, at least one of said means being normally ineffective, accumulator means responsiv to impulses received from said subscriber station for recording the number of impulses andl for rendering effective said ineilective means responsive to impulses received from said each phonograph record for controlling said accumulator means whereby said means will render ineffective said phonograph reproducing elements whenever the proper number of records have been played.

6. A phonograph system for electrically reproducing phonograph records comprising a central station and a plurality of subscribers stations each connected thereto by a, telephone line, each subscriber station being provided with a sound reproducer and coin-operated means for transmitting impulses to said central station in accordance with the value of the coins received thereby to control the reproduction of a predetermined number of ph'onograph records, said central station being provided with means Afor each subscriber comprising a phonograph turntable and motorr a phonograph pick-up, an ampliiier therefor, at least one of said means being normally ineffective, accumulator means responsive to impulses received from said subscriber station for recording said impulses and for rendering eii'ectivesaid ineffective means, and means operated by said phonograph pickup for controlling `said accumulator means as each phonograph record is played whereby said accumulator means will render ineiiective said transmitting impulses to said central station in normally ineffective means whenever the predetermined number of records have been played.

7. A phonograph system for electrically reproducing phonograph records comprising a central station and a plurality of subscribers stations each connected thereto by a telephone line, said subscribers stations each being provided with a sound reproducer, a coin chute and means for transmitting to the central station impulses corresponding to the value of-the coins placed in said coin chute, said central station' being provided with means for each4 subscriber station 'comprising a phonograph turntable and motor, a source of power therefor, a phonograph pick-up, an accumulator means responsive to impulses received from said subscriber station for recording the impulses andifor controlling th'e application of power from said source to said phonograph motor, and means actuated at the end of each phonograph record for retracting said accumulator means one unit ywhereby `to cause said motor to be deenergized whenever a number of records corresponding to the number of impulses received have been played,

8. A phonograph system for electrically reproducing phonograph records comprising a central station and a plurality of subscribers stations each connected thereto by a telephone line, each subscriber station being provided with a sound reproducer, coin-controlled means lfor transmitting to the central station impulses corresponding to they value of the coins received thereby, s aid centralstation being providedwith means for each subscriberstation comprising a phonograph turntable and motor,'a phonograph pick-up,` accumulator means responsive to impulses received from said subscriber station and for rendering effective said phonograph pickup, and means actuated by said phonograph pick-up at the end of each record for retracting said accumulator means one unit whereby to cause said phonograph pick-up to be rendered ineflectivewhenever a number of records corresponding to the number of impulses received have been played.

A94. A phonograph system for electricallyreproducing phonograph records comprising a central station and a plurality of subscribers stations each connected thereto by a telephone line, each subscriber station being provided with a sound reproducer, a coin-controlled means-for transmitting to the central station impulses corresponding to the value of the coins received thereby, said central station being provided with means for each subscriber station comprising a i ph'onograph turntable and motor", a source of power therefor, a phonograph 4pick-up, accumulator means responsive to impulses received from said subscriber station for recording the impulses and for controlling the application of power to said phonograph motor and' for rendering eiective said phonograph pick-up, and means actuated by said phonograph pick-up at the end of each record for retracting said accumulator means one unit thereby to cause said motor to be deenergized and said pick-up to be rendered ineiective whenever a number of records corresponding to the number of impulses received at the central station have been played.

10. A phonograph system for electrically reproducing phonograph records comprising a central station and a plurality `of subscribers stations each connected thereto by a telephone line, each subscriber station being provided with a sound reproducer and coin-controlled means for accordance with the value of coins received thereby to control the reproduction of a predetermined number of records, said central station being provided-with a phonograph turntable and motor for each subscriber station, an ac#-k cumulator means located at said central station arranged to be responsive to all impulses received from all said subscribers stations' means operated thereby for controlling the energization of all of said phonograph" turntable motors, means operated as each phonograph record is played for retracting said accumulator one unit, said accumulator operatingto deenergize all of said phonograph motors whenever a numberpf records corresponding to the total ofsaidreceivedimpulses have been played.

l1. A phonograph system for electrically reproducing phonograph records comprising a central station and a plurality of subscribers stations each connected thereto by a telephone line;

each subscriber station being provided with a sound reproducer and coin-controlled means for transmitting impulses to said central station in accordance with the value of the coins'received thereby to control the reproduction of a predetermined number of. records, said central station being provided with means for each of said subscribers stations including a phonograph turntable and motor, a phonograph Vpick-up, and

, means responsive toimpulses received from said subscriber station for indicating the number `of impulses received therefrom, means controlled by said phonograph pick-up at the end of reproduction of each record for retracting said indicator one unit; means connected to vall of said impulse indicating means for accumulatively recording a total-of impulses received from all said subscribers stations, means operated thereby for controlling the application of power to all of said phonograph turntable motors, and means actuated by each of said phonograph pick-ups at the end of each phonograph record for retracting said latter accumulative recording means each time a record has been played thereby to causek all of said motors to become deenergized when a number of records corresponding to the total of impulses received at the central station have been played.

l2. A system for electrically reproducing phonograph records comprising a central station and a plurality of subscribers 'stations each connected thereto by a telephone line, a phonograph turntable and motor, a phonograph pick-up,V an amplifier and a sound reproducer for each subscriber,l said turntable motor and phonograph pick-up being located at said central station, said sound reproducer being located at said subscriber station, coin-controlled means located at ksaid subscriber station for controlling the effectiveness of said system for electrically reproducing a predetermined number of phonograph records, and means located at said central station for transmitting yan impulse to said coin-controlled means at said subscriber station each time that a phonograph record is reproduced whereby said system is rendered ineiective upon completion of the reproduction of said predetermined number o1 phonograph records. l

13. A system for electrically reproducing phonograph records comprising a central station and a plurality of subscribers stations each connected thereto by a telephone line, each subscriber station having a sound reproducer which is normally ineiective, a coin-controlled means for rendering effective said reproducer, said means including an accumulator means actuated in accordance with the valuel of the coins received thereby, said rst means operating to transmit impulse signals to said central station in accordance with the value of the coins received, and means responsive to an impulse received from said central station for retracting said accumulator means one unit, means located at said centralstation for each subscriber station including a phonograph turntable and motor, a phonograph pick-up, an amplifier therefor, means responsive to impulses received from vsaid subscriber station to indicate the value of coins received by said coin-controlled means at said subscribergstation, and means actuated by said phonograph pick-up upon the playing of each phonograph record for sending an impulseito said subscriber station.

14. A system for electrically reproducing records comprising a central station and a plurality of subscribers stations, a telephone line connected between each subscriber station and said central." station, each subscriber station having a sound reproducer, coin-controlled means for connecting said reproducer to said telephone line, said means including an accumulator means actuated in accordance with the value of the coins' received thereby to maintain said reproducer connected to said line for the reproduction of a predetermined number of phonograph records, said first' means also operating to transmit impulse signals to said central station in accordance with the value of the coins received, and means responsive to an impulse signal received from said central station for retracting said accumulator means one unit; means located at said central station including a phonograph turntable and motor, a phonograph pick-up and an amplier for each subscriber, means responsive to impulses received from said subscriber station to indicate the predetermined number of records to be played, and means actuated by said phonograph pick-up upon the playing of each record for sending an impulse to said subscriber station.

15. A phonograph system for electrically reproducing a phonograph record comprising a central station and a plurality of subscribers stations each connected thereto by a telephone line,

each subscriber station being provided with a coin-controlled means for transmitting impulses to said central station in accordance with the value of the coins received whereby to control the reproduction of a predetermined number of phonograph records, said central station being provided with means for each subscriber comprising a phonograph turntable and motor, a

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phonograph pick-up, and an amplier therefor. at least one of said means being normally ineffective, means responsive to the impulses received from said subscriber station for maintaining effective said normally ine'ective means for the reproduction of a predetermined number of phonograph records, and means for connecting ysaid central station phonograph apparatus to reproduce one or more of said predetermined number of phonograph records at the station of another subscriber.

16. A phonograph system for electrically reproducing phonograph records comprising a central station and a plurality of subscriber stations each connected thereto by a telephone line, each subscriber station being provided with`a sound reproducer and coin-controlled means for controlling the reproduction of a predetermined number of phonograph records from said central station, a telephone line connected between each subscriber station and said central station, said central station being provided with phonograph apparatus individual to each subscriber station comprising a phonograph turntable and motor, a phonograph pick-up, an amplier therefor, at least one of said means being normally ineffec-` tive, means controlled by said subscriber station coin-controlled means for rendering effective said phonograph apparatus for the reproduction of a predetermined number of phonograph records, and means for selectively connecting said phonograph apparatus to the telephone line of any other subscriber station.

1'7. A phonograph system for electrically reproducing phonograph records comprising a central station-and a plurality of subscriber stations each connected thereto by a telephone line, each subscriber station being provided with a sound reproducer and coin-controlled means for transmitting impulses to said central station in accordance with the value of the coins received thereby to control the reproduction of a predetermined number of phonograph records, said central station being provided with phonograph apparatus for each subscriber station, at least one element of said apparatus being normally ineffective and being controlled in accordance 4with impulses received from the coin-controlled means of said subscriber station, and coin-controlled means located at said central station arranged .to be selectively connected to effect the operation of the phonograph apparatus of any other subscriber station whereby the subscriber of a rst subscriber station may cause a phonograph record to be reproduced over the apparatus and line of another subscriber station.

EUGENE L. TRIMAN.

CERTIFICATE OF CORRECTION. Patent No. 2,506,65ll.. December29, 1911.2.

EUGENE .L TRIMAN It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page l, first column, line 8, for station second occurrence, read -stations; page 2, second column, line 6h, for"67 and 66'* read --67 and 68"; page 6,. second column, 11neh5, for "responsiv!! read '--responsive--g line )4.8, for responsive to impulses received from said read and means responsive to the playing of-;' and that the said Letters Patentl should beraad with this correction therein that the -samevmay conform to the record .of the case in the Patent Office.

Signed and sealed this Lith day of August, A. D. 19'45.

I HenryVan Arsdale, (Seal). Acting Commissioner of Patent-s. 

